Ex-Foreign Secretary Boris Johnson will say it’s not good enough to control immigration – but that Britain has to also address the causes of the huge gap between London and the rest the countryCredit: Alamy Live News

Boris Johnson admits he wishes he were PM and should have taken down Theresa May

His speech was attended by Sir Graham Brady, the influential chair of the 1922 backbench committee. Allies of Boris Johnson worry that his ‘hard-Brexit’ stance will hamper his chances in any leadership election.